Engine attachment.



no. 708,023. Patented sept'z, |902.

V. Z.- CARACRISTI. ENGINE ATTACHMENT.

(Applinazion mea June 19, 1901.)y

(No Model.) 3 Sheets-.Sheet I.

f Arm/mfr me N'onms versus co. PNuTaLITHQ. wnsrumznmA u4 c.

Patented 'Sept 2, |902.

V. Z. CARACRISTI.

ENGINE ATTACHMENT.

`(Alzcpliclaizon filed June 1,9, 1901.)

3 Sheets-Sheet 2.

(No Modem Arron/vir Patnted Sept. 2., i902.

v. z. cARAcm'sTl..

ENGINE ATTACHMENT.

(.Application led June 19, 1901.)

3 Sheets-Sheet (no Modem wS/r/vEss'Es 'A TTOHN E Y UNITED STATES PATENT OFFICE.

VIRGINIUS Z. CARACRISTI, OF GRANITE, VIRGIIA.

ENGINE ATTACHMENT.

SPECIFICATION forming part of Letters Patent N o. 708,023, dated September 2, 1902.

Application flied June 19,1901` ving applied to the front end of a locomotive-engine cylinder for the support of theV extended pistonrod thereof, whereby the Weight of the pistonV is removed from the inside of the cylinder, smaller than that usually employed, and to so construct the bearing as will adapt the same to maintain the piston in a central position with relation to the bore of the cylinder, assuring a minimum amount of wear and friction and at the same time rendering the metallic packing more efficient, and, nally, to adapt the bearing to be readily adjusted to compensate for wear without throwing the engine temporarily out of use, or, in other words, taking the engine to the roundhouse for this purpose.

Various other objects and advantages of the invention will hereinafter appear, and the novel features thereof will be particularly pointed out in the appended claims.

Referring to the drawings, Figure 1 is a partial elevation of an ordinary locomotiveengine cylinder with my invention applied thereto, the latter and the said cylinder being shown in central longitudinal section. Fig. 2 is a detail in sectional perspective of the attachment. Fig. 3 shows details hereinafter referred to. Fig. 4 is a longitudinal se`ctional view through one side of the front end of the attachment, illustrating the manner of accomplishing the adjustment. Fig. 5 is a longitudinal section and front elevation of the adjustable Wedge-block.

Similar numerals of reference indicate similar parts in all the figures of the drawings.

In the drawings, 1 Adesignates the cylinder, 2 the piston-rod, 3 the piston-head, 4 the cross-head, and 5 the guides for the latter, all of which are of the Well-known usual construction. (See Fig. 1.) The piston-rod is Serial No. 65 ,188. (No model.)

of that type that extends at each side of the piston-head, and consequently the cylinder 1 has its -front end provided with the usual metallic packing 6 for the purpose of preventing the escape of steam. To the front face of this cylinder, (see Fig. 2,) which is formed With a flange 7, is bolted, as at 9, the rear ange 8, formed on on extension-casing 10. The casing l10 in addition to the rear flange 8 comprises a front flangell and an intermediate tubular connecting body portion 12. The upper side of this tubular body portionis provided with an opening 12', if desired, for the attachment of an oil-cup, and the bottom of the body portion gradually dares or declines toward the front end of the same. The bottom of this body portion may also be provided with a longitudinal slot 13, and the entire extension may be covered by a protecting sheet-metal cylinder-hood 14 of sufficient diameter to Areceive the annular flanges at the front and rear ends of the attachment. The front end of the attachment has secured to its iiange 11 by means of bolts 15 the rear anged face of -a coupling 16, the same being countersunk at its inner end to receive a'swab-cup 17, in which and the coupling may be formed communicating oilports 18. The outer end of the said coupling receives the inner or rear end of a protecting-sleeve 19, which Vloosely receives the front end of the extended pistonlrod, and is therefore forwardly disposed. The front end of this sleeve may be iitted with a ne screen 20, held in place by anysuitable means, as avnut 21.

p The object of course is to protect the piston-rod from dust, grit, and other foreign matter, thus preventing undue wear,

and by the screen to prevent any pumping action within the sleeve. Countersunk laterally-projecting earsv 22 (ses Fig. 4) are formed at each side and at the front end of the extension 10, the rear walls of the ears being provided with openings 23, in which are located loose bolts v24. The'opposite or remaining ends of the bolts are located in corresponding openings 25, formed in the ends of a follower-plate 26, beyond which openings the heads of the bolts lie. The` followerplate referred to"is locatedtransversely in the lower portion of the front end of the tubular body portion of the attachment 10, said plate having its upper edge concaved to accommodate the front extension of the pistonrod. The rear ends of the bolts 24:, back of the openings 23, are provided with set-nuts 24, by means of which the said followerplate may be drawn inward, thus accomplishing the adjustment of the bearing, as will presently appear. Immediately back of the follower-plate, between the bolts 24 and occupying the lower or inclined bottom of the tubular body 12 of the extension 10, is the lower brass or other bearing-block 27, the same being wedge-shaped or tapered toward its rear end, as shown, (see Figs. 1, 2, and 5,) and having its upper side concaved to [it the under side of the front extension of the piston-rod. The underside of this bearing-block may have a threaded aperture 2S tapped therein for the purpose of receiving a binding-bolt 29, the same extending outside of the tubular body portion 12, and therefore extending through the longitudinal slot 13 thereof.

30 designates the upper boxing or bearing, which is of concavo-convex form, as is usual in bearings, whereby it ts within the upper half of the tubular body portion 12 and receives the upper side of the piston-rod. This completes the construction of my attachment, which of course is subject to many variations and modifications, and the operation thereof is as follows: To adjust the bearing as it becomes worn, it is only necessary to remove the casing 14, which serves to protect the attachment. The rear ends of the adjusting-bolts 2-1 and their nuts 24a are then exposed to full view and are accessible, and it will be apparent that by a proper adjustment of said nuts the follower-plate can be drawn to the rear, and thereby the lower wedge-shaped bearing-block will be forced up the inclined bottom of the tubular body portion 12, and all wear thus compensated for. After such adjustment it simply remains to replace the casing 14.

It will be seen that the entire operation can be carried on at any convenient point and with the use of an ordinary wrench and that I thereby avoid, as is now the case, taking the engine to the shop for this purpose, and thus throwing the same temporarily out of use.

Having described my invention, what I claim is- 1. The combination with a locomotive or engine cylinder having a piston-rod, of an extension bearing of approximate wedge shape arranged in advance of said cylinder, and means for adjusting said bearing.

2. The combination with a locomotive or engine cylinder having a piston-rod, of an extension-bearing secured to the front end of said cylinder, said bearing being of wedge shape, and means for adjusting said bearing.

The combination with a locomotive or engine cylinder having a piston-rod, of an extension-bearing secured to the front end of said cylinder and provided with upper and lower bearing-blocks, and means for adjusting one of said blocks.

4. The combination with a locomotive or engine cylinder having a piston-rod, of an extension-bearing secured to the front end of said cylinder and provided with upper and lower bearing-blocks, said lower block being of wedge shape, and means for adjusting said wedge-shape block.

5. The combination with a locomotive or engine cylinder having a piston-rod, of an extension-bearing secured to the front end of said cylinder, a coupling extending from said extension-bearing, and a protecting-sleeve carried by said coupling.

6. The combination with a locomotive-or engine cylinder having a piston-rod, of an extension bearing having flanges, one of which is secured to the front end of said cylinder, a coupling extending from the other flange of said bearing, a protecting-sleeve carried by said coupling, and a screen secured to the free end of said sleeve.

7. The combination with a locomotive or engine cylinder having a piston-rod, of an extension bearing having flanges, one of which is secured to the front end of said cylinder, bearing-blocks carried by said bearing, and a protecting-hood surrounding the peripheries of said anges.

8. The combination with a locomotive or engine cylinder, of an extension-bearing secured to the front end thereof and provided with upper and lower bearing-blocks, means for adjusting the bearing, a coupling,l covering such means, and a protecting-sleeve connected to and extending from such coupling.

9. The combination with a locomotive or engine cylinder, of an extension-bearing secured to the front end thereof and provided with upper and lower bearing-blocks, the latter being wedge-shaped, means for adjusting the lower block and a securing-bolt tapped into the lower side thereof and mounted in a slot in the extension-bearing.

10. The combination with a locomotive or engine cylinder, and its described piston, of an eXtension-bearingof tubular shape the bottom of which is inclined or ared toward the outer end thereof, upper and lower bearing-blocks located in the extension and fitting the same, an adjusting means for the lower bearing, and a binding-bolt for securing the same after such adjustment.

11. The combination with a locomotive or engine cylinder, and its piston-rod, as described, of a tubular extension-bearing, the bottom of which is inclined,upper and lower bearing-blocks located in the extension, the lower block being wedge-shaped to accord with the extension, a follower-plate located beyond the lower block, bolts extending through the plate and swiveled in the extension, and a covering for-the outer ends of the bolts.

12. The combination with a locomotive or IOO IIC

Y scribed, of a tubular bearing extension, the

bottom of which is inclined, upper and lower bearing-blocks located in the extension, the

latter block being wedge-shaped 'toi-accord with the bottom of the extension, a followerplate located beyond the lower block, bolts extending through the plate and through the extension a coupling bolted to the extension and covering the outer ends of the bolts, a protecting-sleeve connected to the coupling, and a screen at the outer end of said sleeve.

13. The combination with alocomotive or engine cylinder, and its described piston-rod, of a tubular bearing extension, the bottom of which is inclined, upper andv lower bearing-blocks located in the extension, the lower block being wedge-shaped to accord with the bottom of said bearing extension, a followerplate located beyond the lower block, bolts extending through the plate and extension and provided with nuts at their rear ends, av

swab-cup, and a coupling inclosing the same and covering the outer ends of the bolts.

14. The combination with a locomotive or engine cylinder, and vits described piston,vof a tubular oppositely-flanged bearing extension bolted to the cylinder and having its bottom inclined and provided with a slot, up-

per land lower bearing-blocks mounted in theextension, the *lower block being wedgeshaped to accord with the bottom of the eX- tension, a protecting-casing fitting over the flanges of the extension abinding-bolt passed through'the slot in the bearing extension'and entering the bottom bearing-block, aswabcup covering the end of th'e extension, and al cover for the vswab-cup. y

15. The combination with a locomotive or engine cylinder, and its'piston-rod, of a tubular extension-bearing located at the front end of the cylinder and provided with laterallydisposed countersunk ears having holes, upper and lower bearing-blocks located in the bearing, the latter block being Wedge-shaped to accord with the inclined bottom ofy the bearing, a follower-plate located against the .front end of the latter block, and bolts passed through the follower-plate and through the holes in the countersunk ears and in rear of the latter provided With nuts.

In testimony whereof I aftix my signature in presence of two witnesses.

VIRGNIUS Z. CARACRISTI. 

